3 years ago

Convert 9/20 to a decimal

Mathematics

2 answers:

topjm [15]3 years ago

8 0

Answer:

0.45

Step-by-step explanation:

Andrej [43]3 years ago

5 0

0.45 just divide 9 by 20 to get it into decimal form

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Jason is 6 feet tall, and at 6 pm, his shadow was 15 feet long. At the same time, a tree next to Jason had a 25-foot shadow. Wha

IRISSAK [1]

Answer:

Step-by-step explanation:

set up a ratio problem

6 feet/15 long shad= x/25 shad

15x = 150

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3 years ago

Solve using synthetic division.<br><br> (x2 + 3) ÷ (x − 1)

murzikaleks [220]

Answer:

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Step-by-step explanation:

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A survey among freshman at a certain university revealed that the number of hours spent studying before final exams was normally

patriot [66]

Answer: 0.0775

Step-by-step explanation:

Given : Mean : $\mu = 25$

Standard deviation : $\sigma =15$

Sample size : $n=36$

Since its normal distribution , then the formula to calculate the z-score is given by :-

$z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

For x= 28.2 hours

$z=\dfrac{28.2-25}{\dfrac{15}{\sqrt{36}}}=1.28$

For x= 30 hours

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The P- value = $P(1.28$

$=P(z$

Hence, the probabiliy that the average time spent stydying for the sampe was between 28.2 and 30 hours = 0.0775

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3 years ago

X+4y=6<br> 3x+3y=9<br> Answer is 6.3 but how

maksim [4K]

Answer:

X = 2

Y = 1

Step-by-step explanation:

x + 4y = 6

3x + 3y = 9

3x + 12y = 18

3x + 3y = 9

9y = 9

x + 4y = 6

y = 1

x + 4 * 1 = 6

y = 1

x + 4 = 6

y = 1

x = 2

so there ia only 1 solution for this equation is (2;1)

Done :))

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3 years ago

Which angle measures create a triangle with three different side lengths?

kenny6666 [7]

13°, 66°, and 101° ......

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3 years ago